When I try to install upstart on Debian 9, I get :
# apt-get install upstart Reading package lists... Done Building dependency tree Reading state information... Done Package upstart is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: systemd-sysv sysvinit-core E: Package 'upstart' has no installation candidate
Debian Wiki states that:
Installation is quite simple. The only package necessary is upstart.
My sources list:
###### Debian Main Repos deb http://deb.debian.org/debian/ stable main contrib non-free deb-src http://deb.debian.org/debian/ stable main contrib non-free deb http://deb.debian.org/debian/ stable-updates main contrib non-free deb-src http://deb.debian.org/debian/ stable-updates main contrib non-free
How can I fix this error and install upstart?